English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

MYB transcription factors of the R2R3-MYB family have been shown to play important roles in many plant processes. A sugarcane R2R3-MYB gene ( ScMYB2 ) and its two alternative forms of transcript ( ScMYB2S1  and  ScMYB2S2 ) were identified in this study. The deduced protein of  ScMYB2S1  is a typical plant R2R3-MYB protein, while  ScMYB2S2  encodes a truncated protein. Real-time qPCR analysis revealed that  ScMYB2S1  is suppressed under PEG-simulated drought stress in sugarcane, while  ScMYB2S2  is induced at later treatment stage. A senescence symptom was observed when  ScMYB2S1  was injected into tobacco leaves mediated by  Agrobacterium , but no symptom for  ScMYB2S2 . Further investigation showed that the expression levels of 4 senescence-associated genes,  NtPR-1a, NtNYC1, NtCAT3  and  NtABRE , were markedly induced in tobacco leaves after  ScMYB2S1- injection, while they were not sensitive to  ScMYB2S2- injection. Moreover, MDA and proline were also investigated after injection. Similarly, MDA and proline levels were induced by ABA and  ScMYB2S1 , while inhibited by  ScMYB2S2.  We propose that  ScMYB2 , by alternatively splicing two transcripts ( ScMYB2S1  and  ScMYB2S2 ), is involved in an ABA-mediated leaf senescence signaling pathway and play positive role in respond to drought-induced senescence in sugarcane. The results of this study provide information for further research in sugarcane stress processes.

A sugarcane R2R3-MYB transcription factor gene is alternatively spliced during drought stress